I just got a yellow bellied/fire bellied toad yesterday(i think its a hybrid) and it seemed fine. At the petstore, it was with oriental fire bellied toads. I already had two fire bellied toads, so i thought it would be fine. I set up my 10- gal tank with gravel on both sides on water in the middle and there is also a half log in there for them to hide in. I fed it two crickets yesterday and didn't even hesitate. Now its sitting regularly, but its head is leaning on the gravel with its back arched and its front legs are tucked under it.
Whats wrong with it?